Well, I guess I sort of agree that "B-theory" is not as constraining, even if both use the term "exist" in a way I disagree with. In any case, they seem to be more of an inspirational value, like the Mach principle (wrong if quantified) was for Einstein.

I am not clear on how one can use stat.mech to explain our time perception, feel free to elaborate some time. Maybe in a separate post, if the argument is long. I agree that humans only experiencing the present is not an argument against "static" block spacetime.

Anyway, I get frustrated by these discussions online, too much is left unsaid, the back-and-forth is slow and selective, only bits and pieces of the argument and motivation get expressed. Could be just my lack of communication skills, of course. If you are ever in Vancouver and feel like meeting up, lunch/dinner/drinks are on me.